Melling 10296 Oil Pump
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On The Tree
Joined: Jun 2005
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Melling 10296 Oil Pump I just finished my cam install and i added the Melling 10296 oil pump... all i have to say is
cold idle 60psi
warm idle 50-55psi
i have not taken the car past 4k since i just put new springs in today.. but my stock ls1 oil pump was about 40 on cold idle and 28-35 on warm idle.... so i think this thing works...
cold idle 60psi
warm idle 50-55psi
i have not taken the car past 4k since i just put new springs in today.. but my stock ls1 oil pump was about 40 on cold idle and 28-35 on warm idle.... so i think this thing works...
Finally someone has some feedback on it. Myself and others have posted up asking if anyone has used it yet and what their thoughts were on it as compared to a ported/shimmed pump from TSP or some place of the likes. No one ever had anything to contribute. Gald you like it and can provide some good feedback.
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I wonder if they have a spring that would do 45-50 cold and 30-35 warm idling? Would that be the stock spring I could use from the stock pump? I dont think I need 60psi idling..............or do I???
Last edited by csmc711; Sep 14, 2006 at 09:13 AM.
Originally Posted by DONAIMIAN
Only problem that I could think of you could run into with a pump like this is it sucking your pan dry at high RPM. But maybe thats just all in my head.
You don't necessarily need more volume, but added pressure is usually what the folks go for in aftermarket applications. Of course, more volume is a bonus as well, it's just finding a medium in both which it looks like the high volume pump does according to InsaneKamel's reported increase in pressure.
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Joined: Jan 2003
Posts: 855
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From: AUSTIN TX
Anytime you increase the volume, you will get an increase in pressure. You can not pump more oil through the same clearances and not have an increase in pressure. Usually a high pressure pump uses a stock volume pump with a higher pressure bypass spring; whereas a high volume pump will use a larger pump with larger gears in order to move more oil. In the case of the high pressure/stock volume pump the pressure will not usually be affected at idle because the pump is usually not pumping enough oil to exceed the pressure being regulated by the bypass spring, hoever as the rpms increase and the pump speed increase the volume of oil increases up until it exceeds the pressure being regulated by the spring. So basically if you put a lower pressure spring in the high volume pump it would not necesarily drop your pressure at idle unless you put a spring in so low that it was bleeding off pressure down low as well but then it would not build pressure as the rpms increased.
I can shift faster than you.
iTrader: (21)
Joined: Nov 2001
Posts: 5,133
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From: Baton Rouge, LA
Originally Posted by allthrotle
As far as where to purchase the melling pump you can purchase them with summit, they sell melling pumps.
http://thunderracing.com/catalog/?ac...&vid=3&pcid=83
I just installed one in my new engine. I havent got it started yet to check pressure.
I am wondering why there is no gasket where the pump mates to the block. Its hard to belive that metal to metal surfaces under that kind of presure wont leak.
I am wondering why there is no gasket where the pump mates to the block. Its hard to belive that metal to metal surfaces under that kind of presure wont leak.